- Dec 9, 2018
From the second screenshot in the smaller images it looks like a single emitter 520I found this nice little spreadsheet that shows the development of two other twin emitter diodes in green and red!
Could be neat having an RGB collection of dual beam lasers
You can still find Mitsubishi twin beam reds on ebay and I managed to find an AliExpress listing for the green one but no luck on the blue yet. I wonder if the AliExpress listing is legit though, could just end up receiving a normal green laser diode.
EDIT: I bought one and will report back when it arrives
Are you referring to the picture of the raw green output? Multi-emitter diodes will look like that uncollimated. The emitters are so close together that the unfocused output will create a single splash of light, its not until a lens is added and the beams are collimated will you see the separate beams from the separate emitters.From the second screenshot in the smaller images it looks like a single emitter 520
Same seller where I found the blue also has the green(way better divergance out of all 3). I'm looking maybe he also has the red(worst divergance ever).Are you referring to the picture of the raw green output? Multi-emitter diodes will look like that uncollimated. The emitters are so close together that the unfocused output will create a single splash of light, its not until a lens is added and the beams are collimated will you see the separate beams from the separate emitters.
Not the same seller but I've found both not the redHe’s selling the blue twin beam too? I must have missed that when I looked through his available diodes.
Yeah the cost of the diode does raise some concern on whether it will truly be the twin beam or just another 1W green like we’ve had for years. But even if it is just a regular green at least I won’t have spent a fortune on it.
How about the raw beam no lens? At low power 500-700mA?This morning I got the GH05C01C9G diode, or at least that's what the antistatic bag had written on it. Powered up it produces quite a wide and uncollimated output (not quite linear FAC but close) and the collimated output is just a single spot unfortunately. This diode is probably just a recanned NUGM02 or more likely it's the GH05C01A9G (single emitter).
Pretty bummed about that but it does produce 1W @ 521nm when driven at 1.5A which is pretty spot on with the NDG7475 at that input power. My NDG7475 wavelength shifts all the way up to 525nm at 1W which to me looks just like DPSS 532nm side by side but this new diode is noticeably more blue which is cool.
The hunt continues for double beams!
I am looking to buy sharp 520nm 1200 mW. Is it single or dual beam. It is the cheapest 1w+diode I can find compared to nichia ndg 7075. It would be an optical nightmare to combine or collimate the 2 beams.